Search published articles

Showing 15 results for Ghasemi

Ghazal Asadi Eskandar, Bahador Zamani, Shahab Kariminia, Maryam Ghasemi Sichani,
Volume 0, Issue 0 (3-1921)

Increased temperatures in urban areas due to high energy consumption and greenhouse gas emissions are some of the problems of today's cities. Urban open spaces in hot and arid climates experience this problem more in summer. The purpose of this study is to show the relationship between morphological components of the urban fabric and thermal comfort through integrated analysis. In this study, urban fabric types were extracted by considering ground space index, floor space index, open space ratio, average height, streets orientation, streets organization, and type of plots according to their configuration of mass and space. To study thermal comfort, a field study was carried out in five neighborhoods in the historical context, for five continuous days in summer. Environmental variables including air temperature, humidity, radiant temperature, and wind speed were measured and the physiological equivalent temperature index was calculated using ENVI-met software and thermal comfort in the neighborhoods with different morphological characteristics was analyzed. The results showed that more than half of the data during the day in the hot season in all five neighborhoods are in conditions of extreme heat stress. Comparison of neighborhoods with different morphological features indicated that two neighborhoods with higher open space ratios, despite the difference in the orientation of the streets and the type of plots, have lower thermal comfort compared to other types. A neighborhood with a higher ground space index and a lower open space ratio has a lower average physiological equivalent temperature.

Elham Ghasemifar, Mohammad Rezaey69, Forozan Eysvand Zebaie,
Volume 15, Issue 39 (12-2015)

Ahmad Reza Ghasemi,
Volume 16, Issue 43 (16 2016)

Air temperature is one of the most frequently used parameters in the assessment of climate change at global and regional scale. So researchers have tried to modeling and predicting it with different models. This study also aims to model and predict the country's monthly minimum and maximum temperature. Investigates of temporal temperature changes is done by Sen’s estimator and Pettit method and predicting made by Holt-Winters model. The results indicated that the minimum temperature during 1961 to 2010 increased by 2.9º C . This rate is more in stations located in the warm and dry regions (3.1°C) than any other stations (1.8°C). While the maximum temperature gradient changes are lower and is about 2.1°C. The results also confirmed the performance of Holt-Winter's forecasting model. Beside a few exceptions, the minimum and maximum temperature will be increased until 2020. The highest increase of temperature will occur in Khoy, so that the minimum and maximum temperature will be increased about 0.6°C and 0.28°C, respectively.

Ali Asghsr Abdollahi, Moslem Ghasemi,
Volume 18, Issue 50 (3-2018)

Analysis probative spatial data method for checking patterns spatial accidental and accidental is distribution variables spatial and correlation spatial from more usage and more important tools Analysis for is the research in the case spatial data. The aim in research, is evaluation operation methods find inside in distribution spatial land use city Kerman. That on base of methods find inside kriging ordinary with models circularly, gauss, spherical and exponential for find inside data use and with criteria error inclusive Root Mean Square) RMS( and Standard Root Mean Square) SRMS(,Mean Standard)MS(,Mean and average Mean error)ASE  (pay to evaluation veracity and exactitude. Methodology research present, descriptive – resolution with resolution spatial use software GIS. Results resolution explanatory existence pattern cluster in the land use study, administrative and commercial and pattern diffused for land use medical in the city Kerman. In between four pattern use study follow of better order. Too results research rectitude, specified pattern kriging ordinary with model gauss beater shape pattern distribution spatial use in the city Kerman

Dr Daryoush Moradi Chadegani, Masoud Ghasemi, Niloofar Rastghalam,
Volume 20, Issue 58 (9-2020)

Isfahan City-Region is a collection of cities and towns with shareable common ground (such as communications, infrastructure, population and climate) at the geographical level of the city of Isfahan and its surroundings, and their social, economic, functional and spatial dependencies are such that one The geographically differentiated metamorphic and sub-regional divisions form the surface of the land and the main focus of its residential concentration is the city of Isfahan. These common features make it possible for them to complete complementary fields with single target targeting. Meanwhile, municipalities, as the main actor of urban management, play a major role in communicating cities and managing these relationships, so that these issues can play a common language among the actors in the city-region. This research is descriptive-analytic in terms of its main purpose. The analysis of locational problems and identification of key actors in Isfahan-Isfahan (including Isfahan and ten neighboring cities: Abrisham, Baharestan, Khomeinishahr, Khorzuq, Dorcheh, Dolatabad, Shahinshahr, Ghahjavarestan, Gaz, and Najafabad) is an applied research. For this purpose, in the first step, identifying problems between Isfahan and ten neighboring cities has led to the formulation of a statement of problems by using the dual paths of reviewing the documents of documents and urban plans and conducting interviews with city managers and experts. In the second step, analyzing the problems and problems of the cities located in the city-region of Isfahan, based on the six-tagged codes defined for each problem, the amount of weight (severity of the problem) is determined and, through the method of analyzing social networks, the network of "actors-problems" is drawn. Based on the findings of the analysis from this network, the problems of "Air pollution caused by the exhausted bus", "the occurrence of environmental problems caused by the destruction of the ecological capacity of West of Isfahan" and "shortage of fire fighting equipment in neighboring cities of Isfahan" are the most important of the city-region. The department of "Urbanism & Architecture", "Transportation" and "Urban Services" as acters paly the most key role in solving the problems of the city-region of Isfahan.

Mr Farhad Ramezani, Dr Maryam Ghasemi, Dr Hadi Zarghani,
Volume 21, Issue 60 (3-2021)

Today, in the context of sustainable rural development, the need to move quickly from traditional livelihoods to sustainable livelihood patterns is evident. It is obvious that achieving this change is not possible without regard to the household's livelihoods and assets. Livelihoods include the types of natural, physical, human, social and financial assets that are considered as essential to the livelihoods of the poor. Accordingly, the main objective of this study is to measure the level of livelihoods of households living in the border villages of Torbat-e-yam. The descriptive-analytic research methodology is an applied-developmental type. In the present study, livelihood assets were categorized into 5 types of assets with the help of 64 indicators. These indices in the confirmatory factor analysis explained 66% of the variance, and also the Cronbach's alpha coefficient was 0.91, indicating the validity and reliability of the research tool. The statistical population of the study is all border villages in more than 20 households in Torbat-e Jam. The unit analyzes 264 households in 17 villages located 10 kilometers from the border between Iran and Afghanistan. The results of the study showed that the livelihood of rural households living at the border is very low, so that the average human capital is 2.13, capital 1.87, social capital 2.48, physical capital 1.81, natural capital 12 / 2 in the Likert spectrum is significantly lower than the theoretical one. Also, the "livelihood assets" structure with an average of 2.22 was measured as "low". The results of the research show that the livelihood patterns of the border villages continue to be characterized by traditional livelihoods and have little adaptation to sustainable livelihoods, and the settlement in the village, along with the geographical isolation of the borders, has created many livelihoods for the dwelling population. Any activity in the field of livelihood modeling requires attention to the multiplicity of livelihoods.
Leyla Ghasemi, Farveh Farveh Rahmani, Tahereh Bayat,
Volume 22, Issue 64 (3-2022)

Humans in the course of urban development in order to conduct the affairs of the citizens have attempted to establish a municipal entity and the duties and responsibilities to municipalities are considered. municipal performance analysis can be the best way to ensure proper duties as mayor. this study aimed to evaluate the satisfaction level of citizens the function and importance of the services that municipalities offer is made. the research method is descriptive-analytical and data collection method based on the Library, and field documents (questionnaires, respectively). Spss software was used for data analysis. statistical methods used in this paper Methods of Correlation Kendall's t-test and Kruskal-Wallis test.the results indicate that the satisfaction of the citizens of the municipality varies according to their age. satisfaction of citizens less than 40 years of municipal performance is much lower than average. and satisfaction of citizens over 40 years, is mediocre. Citizens' satisfaction with the quality of service and how information is below, but the degree of satisfaction of the authorities, employers and employees, is moderate. Among development duties-technical, service and social-cultural municipalities of the perspective of citizens in the region, there are significant differences in terms of importance. In a manner that is most important tasks of municipal services.

Mohsen Ilaghi, Nima , Jahanbin, Iraj Ghasemi,
Volume 22, Issue 64 (3-2022)

The purpose of this study is to redefine the concept of neighborhood in newly developed urban contexts. Therefore, this research is a qualitative research in terms of purpose and is a qualitative one with Grounded Theory approach. A cross-sectional approach was used to analyze the documentary studies. The statistical population of this study includes experts and university professors in urban planning and sociology. The method of data collection is documentary study, views, definitions and in-depth and open interviews. In this study, 22 people were interviewed. NVivo software was used to analyze the qualitative data and coding and to evaluate the frequency of codes extracted from the interviews. The findings of this study indicated that redefining the concept of neighborhood in developed contexts can be explored through conceptual modeling. In this conceptual model the four most important dimensions are objective (physical-functional), subjective (perceptual), economic, and socio-institutional dimensions to redefine the concept of neighborhood in new urban contexts. It also interconnects the seven core codes of “diversity and quality of urban services”, “neighborhood edge and boundary”, “safety and security”, “livelihood and economic position of the neighborhood”, “social status”, “social solidarity”, and “sense of belonging and the correlation with the location” with three selective codes “continuity and functional-spatial cohesion”, “socio-economic mobility”, and “socio-institutional cohesion, and dependency”, a new definition of the neighborhood can be found which is presented at the end of this article with the conceptual model.
Professor Maryam Ghasemi, Mr Amin Faal Jalali,
Volume 22, Issue 66 (9-2022)

the analysis of land use utility matrix based on human and natural criteria in residential areas is the necessity and issues that planners in urban and rural areas in terms of access to communication network, central location, weather, noise and etc are a turning point for how optimal use is of resources. the aim of this study is to identify the level of user desirability in rural areas of Binaluod county. in this study, 14 user groups with 52 % of land use terms of central location, access to communication network, smell, facilities and equipment, slope, air, sound and vision were investigated. the present study is descriptive - analytical and data collection were collected in the field method by 48 local experts in eight villages. the results show that based on the four alternatives (4: Completely desirable and 1: totally undesirable) the bakery users with an average of 3/99 and the gymnasium with an average of 4 have made the highest compatibility in terms of the desirability of the location and land of the historic tank with /38 and the dilapidated housing with 3/40. Also, the average utilization rate of land use in the village of Zashk 3/74, in the village of Dehno 3/82, in the village of Jagherz, 3/78, in the village of Abedeh Alya, 3/89, in the village of Nochah equaled 3/92, in the village of Hesar Golestan 3/76, In the village of Hesar Sorkh 3.79 and finally in the village of Ruhni, the utility rate was 3.80. the results show that despite the wide range of land use changes outside the context of study villages, the level of land use within the rural fabric is desirable in terms of quality of high - order location, 3/81.

Negar Ghasemi, Marzieh Alikhah Asl, Mohammad Rezvani,
Volume 22, Issue 66 (9-2022)

Study of resources changes in previous years could be useful in the planning and optimal using of resources to control inappropriate changes. Because land use changes occur on large-scale, remote sensing technique is a useful and valuable tool for monitoring the changes. The aim of this research is land  cover changes detection in a period of 32 years in Pishva town with using remote sensing technique .First TM, ETM and OLI images for the years 1986, 2002 and 2018 were collected respectively and after geometric and radiometric corrections, images were classified by using maximum likelihood classification methods. Kappa and overall indexes were used to calculate classification accuracy. Results showed in past 32 years, bare land and irrigated land have decreased while residential and greenhouse areas have increased. Classification accuracy showed that OLI, ETM and TM sensors have high accuracy respectively with kappa 0.96, 0.80 and 0.76 and also overall indexes of 97.56, 86.54 and 86 percent. Based on results, in the first period (1986-2002) 27.6%, in the second period (2002-2018) 29.60% and in the third period (1986-2018) 31.8% of area land cover have been changed. Results showed land cover changes in the area is related to climate changes like low precipitation, drought and social condition like population and food need increasing and economic condition like high production and efficiency.
Ali Shamai, Seyed Hossein Vahdi Nejad, Soghera Azarshab, Moslem Ghasemi,
Volume 22, Issue 67 (12-2022)

Urbanization and urban growth as a global phenomenon have affected all the countries of the world. Ahvaz city has seen its diverse body tissues throughout its lifeless life. Over time, land use in Ahvaz city has undergone a lot of changes due to the presence of factors and forces that has been unfavorable and has affected agricultural land so much. The main objective of this research is to investigate the physical development of Ahvaz city. This research is applied in terms of nature and descriptive-analytical in terms of methodology. In order to achieve this goal, firstly, the physical expansion in the city of Ahvaz was reviewed in the comprehensive plan approved in 2010, and then 14 indicators were extracted to study the optimal development of Ahvaz city development, which were standardized using Fuzzy Logic (FUZZY) Continued for the optimal model using the ANPDEMATEL combined analysis model. Three levels for the expansion of this city have been identified in combination with OVERLAYFUZZY and GAMA/ 0 in the GIS environment, the output maps were also extracted using the ENVI and ARCGIS software. The results showed that at the level of predictive models of agricultural land with weights of 0.101 and 0.118, the most important factor has been changed in the process of physical expansion of the Ahvaz city. Also, using the map of physical expansion in the year 2010 and the outline map of the level of physical expansion in this study showed that the physical expansion of the Ahvaz city is not consistent with the comprehensive plan approved in 2010.

Ms Elaheh Ghasemi Karakani, Mr Ebrahim Fattahi, Mrs Loabat Salehi Pak, Mr Hooshang Ghaemi,
Volume 23, Issue 69 (6-2023)

During the rainfall, the intensity of precipitation varies. Changes in the amount of precipitation during an event of rainfall are effective in the resulting of flood and its intensity. Knowledge of how rainfall changes over time during rainfall is determined by temporal distribution pattern of rainfall. For this purpose, availability of short-term time scales rainfalls data are important that obtained by rain gauge stations. However, the low density of the rain gauge network and the lack of sufficient data from the time pattern of rainfall have always been a problem in determining storm patterns for executive plans. Therefore, the simulation of WRF numerical weather models can be used. The WRF model is one of the most responsive models for predicting precipitation, temperature and atmospheric elements that used in this study. In this paper, three great storm events on 15 December 2003, 24 - 26 December 2006 and 6-7 March 2007 have been selected in the Parsian dam basin and surrounding areas in south west of Iran. The result of WRF numerical weather prediction model for these great storms compared with data loggers. It showed that the WRF model was able to performance the heavy rainfall and simulates the rainfall pattern in these dates. 

Mrs Zahra Soleymani, Dr Maryam Ghasemi,
Volume 24, Issue 72 (3-2024)

Return migration is a reaction to the attractiveness of rural areas. This type of migration can have many and varied effects on rural area reconstruction. The purpose of this study was to identify and analyze the effects of return migration on the reconstruction of rural settlements in Neyshabur. The research method is descriptive-analytic and a questionnaire based.  In this study, 37 villages in Neyshabur that had returning migrants were surveyed. And 55 effects of returning migrants on rural areas reconstruction were identified, that the Cronbach's alpha coefficient of 0.942 indicates the optimal reliability of the research instrument. The indices were evaluated under three social dimensions with 18 indices (α = 0.925), economic with 21 indices (α = 0.891) and physical-environmental with 16 indices (α = 0.852). Exploratory factor analysis was used because t-test showed that there isn't significant difference between the three dimensions except social dimension. The results showed that 55 effects identified return migration can be classified as 14 main effects with 78.79% variance.  Accordingly, 1- increasing cohesion and solidarity among residents with 25.21% of variance, 2- improving service and welfare infrastructure with10.52% of variance, 3- boosting rural economy with7% of variance, 4- activating of capacities with 5.4% of variance, 5- developing Non-farming activities with 5% variance are the most important effects of return migration on the reconstruction of rural settlements.
- Valiollah Ghasemi Gilvaei, - Afshin Ghorbani Param,
Volume 24, Issue 74 (9-2024)

Housing design plays a crucial role in sustainable social development as cities face numerous challenges due to various changes in the physical landscape. Therefore, it is imperative to establish appropriate design indicators for residential towers. This study aims to investigate the design indicators for sustainable social development in residential towers in the metropolis of Tehran. The research method employed is descriptive-analytical and applied in nature. The statistical population for this study consists of architectural experts who are members of the Tehran Organization. According to the Engineering System Organization, the statistical population comprises 22,000 experts and members of the Tehran Engineering System Organization. The sample size was determined to be 384 individuals based on the Morgan table. The results of the Friedman test indicate that designing open spaces for art, culture, games, and entertainment in towers promotes interactions and a sense of belonging, while mitigating the negative effects of industrial life on residents. This aspect was found to have the highest weightage of 17.81. Additionally, the flexibility in tower design and overcoming structural constraints through solutions such as strip design and atrium design, along with facilitating proper access and installation of open spaces, contribute to sustainable development and enhance residents' satisfaction. This indicator obtained a weightage of 17.51. Furthermore, the effective management of towers and the design of suitable social spaces on roofs and ground floors (interactive, sports, cultural, and artistic) have a significant impact on reducing tower-related issues and promoting vitality and public participation. This indicator ranked third with a weightage of 17.42. Consequently, sustainable social development is closely linked to the design of residential towers.

Valiollah Ghasemi, Afshin Ghorbani Param,
Volume 25, Issue 76 (3-2025)

Industrialization and modernization of societies affect architecture, urbanization, environment, climate and geography; which we can mention the emergence of high-rise building, climate inversion, changes in geography of societies and environmental degradation. The roots of the problems over the last few decades are population growth, increasing migration to cities and metropolises, changes in needs and demands of citizens, etc.; Which faces urban managers, designers and architects with a huge challenge. The main purpose of this article is to theoretically study the uses such as residential towers on the one hand and the ideas mentioned in the theoretical discourse on the other hand with the approach of sustainable social development, and its impact on environmental protection according to the geography of Tehran. This research is "descriptive-analytical" in nature and "survey". It is "practical" in terms of purpose and "quantitative-qualitative" in terms of data. The number of statistical samples was 384 people and data were collected through questionnaires. Analyzes were performed in SPSS software. The most important result of this research can be expressed as the fact that due to population growth, high-rise was formed and through it, issues such as overuse of natural resources and fossil fuels, destruction of nature, reduction of social interactions, climate change, traffic creation, Rising air pollution, etc., has become a huge and insurmountable crisis.

Page 1 from 1     

© 2024 CC BY-NC 4.0 | Applied researches in Geographical Sciences

Designed & Developed by : Yektaweb